Thill-coupling



W. H. STEVENS.

Thill-Ooupl ing.

No. 224,113. Patented Feb. 3, 1880.

lllvEl ft [11f i Will E5555:

N. PEPE-RS, FMOTO-LITHOGRAPHER, WASHINGTON. D, G

UNITED STATES PATENT OFFICE.

WILLIAM H. STEVENS, OF MENDON, MICHIGAN.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 224,113, dated February3, 1880. Application filed December 20, 1879.

To all whom it may concern:

Be it known that I, WILLIAM H. STEVENS, of Mendon, in the county of St.Joseph and State of Michigan, ha"e invented certain new and usefulImprovements in Thin-Couplings; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and useit,

of the coupling.

reference being had to the accompanying drawings, which form part ofthis specification.

My invention relates to an improvement in thill-couplings; and itconsists in the arrangement and combination of parts, whereby the twoparts of the coupling are not only held together by a spring, butprevented from rattliing, as will be more fully described hereina ter.

Figure l is a perspective of the two parts Fig. 2 is a vertical sectioot the two parts put together.

a represents the part of the coupling which is fastened to the axle, andwhich consists of a cylinder that is closed at the end' I) and open atthe one 0; From the open end 0 there is made a narrow cut, (I, in towardthe center of the cylinder, which extends but a short piece, when itruns into an opening, 0, which is about one-fourth as wide as the entirecircumference of thecylinder. 0n the front side of this cylinder is madea groove, 9, in which the rear end of the spring 2' catches so as tohold the two parts of the coupling together.

The other part, h, of the coupling forms a part of the plate Z, which issecured to the rear end of the thill n. The rear end of this plate 1 isformed into-the round part 0, which just fits the bore of the cylinder,and to one end of this part is secured a cap, 7', which incloses theopen end of the cylinder when the two parts of the coupling are puttogether. Also, secured to the cap r and plate 1 is a covering-plate,'0, which covers over the opening e in the side of the cylinder afterthe two parts have been put together and the thills turned downward.While the two parts are together the rear end of the spring 6 catches inthe groove 9 in the cylinder and holds the two parts together, so thatthey cannot be separated until the spring has been pried back, when thethills can be moved sidewise. Before the two parts of the coupling canbe separated, however, the tliills must be raised upward until the partas of the plate comes just opposite the out d. The opening 6 in thecylinder allows the part of the coupling on the thill to'turn in thepart a sufficiently to give "the thills all of the play that isnecessary.

The spring prevents all rattling of the parts at all times.

Having thus described my invention, 1 claim In a thill-coupling, thecombination of the part aqhaving the groove g, with the thill Z,provided with the cap '0, spring 1', part 0, and cap 4", the parts beingarranged to operate as shown. g

In testimony that I claim the foregoing I have hereunto set my hand this17th day of December, 1879.

WILLIAM H. STEVENS.

Witnesses: G. P. DOAN,

M. P. BRUHN.

